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345 results

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    Puffball fungus spore — Stock Photo
    Puffball fungus spore
    Magnified digital illustration of 2 cell stage embryo. — Stock Photo
    Magnified digital illustration of 2 cell stage embryo.
    Illustration of sperm fertilizing human egg cell. — Stock Photo
    Illustration of sperm fertilizing human egg cell.
    Human four-cell embryo, digital illustration. — Stock Photo
    Human four-cell embryo, digital illustration.
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    Human sperm cells — Stock Photo
    Human sperm cells
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization. — Stock Photo
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization.
    Human sperm cells, abstract computer illustration. — Stock Photo
    Human sperm cells, abstract computer illustration.
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    Human sperm cells, abstract computer illustration. — Stock Photo
    Human sperm cells, abstract computer illustration.
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Illustration of unfertilized human egg cell. — Stock Photo
    Illustration of unfertilized human egg cell.
    Fertilization showing sperm fertilizing an egg — Stock Photo
    Fertilization showing sperm fertilizing an egg
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Male sex cell — Stock Photo
    Male sex cell
    Illustration of sperm fertilizing human egg cell. — Stock Photo
    Illustration of sperm fertilizing human egg cell.
    Meiotic cell division — Stock Photo
    Meiotic cell division
    Sperm cell, or spermatozoa — Stock Photo
    Sperm cell, or spermatozoa
    Parasites attacking female egg cell, digital illustration. — Stock Photo
    Parasites attacking female egg cell, digital illustration.
    Illustration of transparent cells with splitting nuclei, cell membrane and visible chromosomes. — Stock Photo
    Illustration of transparent cells with splitting nuclei, cell membrane and visible chromosomes.
    Transparent sperm cells moving towards round red colored egg cell, illustration. — Stock Photo
    Transparent sperm cells moving towards round red colored egg cell, illustration.
    Female reproductive system and Gardnerella vaginalis bacteria attached to vaginal epithelial cells causing bacterial vaginosis, digital illustration. — Stock Photo
    Female reproductive system and Gardnerella vaginalis bacteria attached to vaginal epithelial cells causing bacterial vaginosis, digital illustration.
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Egg and sperm fertilization process — Stock Photo
    Egg and sperm fertilization process
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Male sex cell — Stock Photo
    Male sex cell
    Daisy pollen grain — Stock Photo
    Daisy pollen grain
    Illustration of silhouette of pregnant woman with visible uterus and 16 cell stage embryo. — Stock Photo
    Illustration of silhouette of pregnant woman with visible uterus and 16 cell stage embryo.
    Eight-cell embryo — Stock Photo
    Eight-cell embryo
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    Broadbean pollen grain — Stock Photo
    Broadbean pollen grain
    Human embryonic stem cell, digital illustration. — Stock Photo
    Human embryonic stem cell, digital illustration.
    Sperm cells, abstract digital illustration. — Stock Photo
    Sperm cells, abstract digital illustration.
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell. — Stock Photo
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell.
    Human x chromosomes — Stock Photo
    Human x chromosomes
    Illustration of 8 cell stage egg on blue background. — Stock Photo
    Illustration of 8 cell stage egg on blue background.
    Human sperm cells — Stock Photo
    Human sperm cells
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Primula pollen grain — Stock Photo
    Primula pollen grain
    Human sperm cells and egg cell — Stock Photo
    Human sperm cells and egg cell
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Passion flower pollen — Stock Photo
    Passion flower pollen
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Sperm spermatozoa swimming towards egg cell, colored digital illustration. — Stock Photo
    Sperm spermatozoa swimming towards egg cell, colored digital illustration.
    Bottlebrush pollen grain — Stock Photo
    Bottlebrush pollen grain
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    3d illustration of red transparent sperm cells swimming towards egg cell. — Stock Photo
    3d illustration of red transparent sperm cells swimming towards egg cell.
    Sperm cell with multiple tails — Stock Photo
    Sperm cell with multiple tails
    Bag containing donated human blood, placenta and umbilical cord. — Stock Photo
    Bag containing donated human blood, placenta and umbilical cord.
    Angel trumpets pollen — Stock Photo
    Angel trumpets pollen
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    Four-cell embryo — Stock Photo
    Four-cell embryo
    Climbing lily pollen — Stock Photo
    Climbing lily pollen
    Epithelium from a fallopian tube — Stock Photo
    Epithelium from a fallopian tube
    Sperm fertilising an egg — Stock Photo
    Sperm fertilising an egg
    Human sperm cells, abstract computer illustration. — Stock Photo
    Human sperm cells, abstract computer illustration.
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower